From the movie new guy: the new guy who got bad reputation from one high school where he gets picked on, and the transfer to another high school where he rebuild his reputations with attitudes as oppose to his old dorky one. After he was being exposed by his foe, the crowd call him "prodick"

meaning: pretend to be something so much that you're not

Hey prodick, is anything you do that's real? are you strong enough to take down someone else?